The HC-SR04 is used to measure distances by using ultrasonic sounds. It works by sending out a burst of ultrasound and listening for the echo when it bounces off of …
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The DS18B20 is a temperature sensor that can be used in various simple projects. This part uses the 1 wire bus and you can connect multiple sensors up to your Espruino. …
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The PCF8574 is an 8 bits I/O port expander that uses the I2C protocol. Using this IC, you can use only the SDA and SCL pins of your Arduino board …
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The MLX90614 is a non-contact infrared thermometer with a measurement range from -70 to +380 degree Celsius. Just connect the four leads to your MBed supported device and you will have …
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The ADXL345 is a small, thin, low power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16g. Digital output data is formatted as 16-bit twos complement and is …
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In this example we use the DHT22 (or AM2302) humidity/temperature sensor and the Arduino UNO board to read data and print it out to the serial monitor. The DHT22 is better …
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A light-dependent resistor is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words, it exhibits photoconductivity. A photoresistor can be applied …
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This is similar to the previous example, this time we will display the time on our LCD. If you are familiar with JavaScript you will recognise some of the code …
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These displays were used in old Nokia 5110 cell phones. It is a 84×48 pixel monochrome LCD display and you can use it for graphics, text or bitmaps. To use …
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This piece of hardware is the Espruino Pico which is designed to be programmed in Javascript ,the Pico is designed to plug right into you computer’s USB type A connector, …
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Go to the micro:bit web site and follow the hyperlink to Create Code. Choose the Microsoft Block Editor and make a New Project. Look in the Basic section for the …
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In the last couple of days I managed to get my hands ona Micro Bit, if you have no idea what i am talking about then this will introduce you …